You probably have a shorted wire going to the motor or switch. You'll have trace the wires and find the damaged section.
Remove the wiring harness from the back of your 2005 Chevy Cavalier heater blower motor. Remove the heater blower motor retaining bolts. Remove the heater blower fan.
Blown fuse, defective blower motor, or defective blower motor resistor pack.
Blown fuse, defective Blower Motor Resistor Pack, Defective Blower Motor, or Defective Blower Motor speed control switch.
There might be a bad fuse causing the heater to not work. Check the fuses if they are all ok you may have a bad blower motor. when you turn the heater on and no air is blowing then it is your blower motor.
If the heater is blowing the fuse when the blower is turned on, I would suspect the blower motor is defective or locked up. If the A/C is blowing a fuse, suspect a bad clutch, or locked up compressor.
check for a blown fuse that says heater or blower motor
Heater blower motor is defective and locked up, or possible short in the wiring.
try replaceing the switch that controls the low to high for heater It's gonna be the blower motor resistor (near the blower motor).
Bad blower motor fuse? Bad blower motor resistor pack? Bad blower motor - checck to see if it is getting power--if so bad motor Bad switch?
Ok..I figured it out. Turns out the rear defroster is the problem. When I unplugged it from the back windshield, blower/heater works great!! So...to all those out there..if your blower motor blows fuses...check the blower motor first...then the HVAC and heater fuses, then rear defroster if you have a cavalier!
Check the fuses.If not the fuse, test the resistor down by the blower motor.
Remove the wiring harness from the 1996 Chevy Cavalier blower motor. Remove the blower motor retaining bolts. Remove the blower motor fan. Reverse the process to install the new blower motor.
check the blower motor resistor
Yes, there is a fuse for the blower motor.
There is an electrical short to ground in the fan switch or in the blower motor itself.
Defective blower motor? See if it is sgetting power Blown fuse?
Blower motor, resistor, wiring or control problem are common causes
Depends on what you mean by heater will not work. If the blower motor will not work, it can be a blown fuse, bad blower motor, bad blower motor switch, or a defective blower motor resistor pack. If you mean that the blower motor works but there is no heat, then it can be a clogged heater core, thermostat stuck open, or defective heater control valve.
it possible is the blower motor is going bad or the blower motor squirl cage is rubbing Most likely there is debri in the blower motor cage, usually mice get in there.
Check your heater core also.
The heater core when air from the blower motor is blowing
The a/c heater blower motor resister is located in the vehicle on the passengers side inside the housing next to the blower motor...............Remove the blower motor resistor wire harness connector.Remove the blower motor resistor screws.Remove the blower motor resistor.
is the blower motor running? or is it just not blowing hot air?
mor vehicle info would help, but blower motor can be shot without blowing fuse